The 510 Is The World'S Original Chelsea Boot. The Rugged Look And Exceptional Comfort Is Made For Australia'S Outback And The Streets Of New York.2.5Mm Extra Thick Durable Stout Brown Premium LeatherSteel Shank-Ensures Correct Step Flex Point, Assists With Torsional StabilityFully Removable Shaped Comfort Footbed. Poron Xrd In The Heel Strike Zone For Increased Shock ProtectionSku: 510-BlackUnisexAdult